CN208352195U - A kind of high reliability vacuum circuit breaker - Google Patents
A kind of high reliability vacuum circuit breaker Download PDFInfo
- Publication number
- CN208352195U CN208352195U CN201820849789.1U CN201820849789U CN208352195U CN 208352195 U CN208352195 U CN 208352195U CN 201820849789 U CN201820849789 U CN 201820849789U CN 208352195 U CN208352195 U CN 208352195U
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- CN
- China
- Prior art keywords
- contact
- vacuum circuit
- circuit breaker
- main control
- control module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model discloses a kind of high reliability vacuum circuit breakers, including the first insulation column, second insulation column and operating stick and connecting lever, the lower end of second insulation column has pedestal, pressure sensor is equipped between pedestal and fixed frame, bracket is additionally provided on fixed frame, bracket is equipped with linear advancement mechanism, the shell of linear advancement mechanism is hinged with bracket and the force side of its movable body of rod and connecting lever is hinged, the vacuum circuit breaker further includes main control module, power module and drive module, pressure sensor and drive module are all connected with main control module, linear advancement mechanism connects and is controlled by drive module.Pass through the extruding force of detection contact and contact electrode after combined floodgate, to judge contact and contact the tightness of electrode contact, when pressure value, which is not achieved, makes contact and contact electrode reliable contacts, main control module controls power mechanism, become to making contact to press tighter with contact electrode, guarantee contact and contact electrode reliable contacts always, improves the reliability of vacuum circuit breaker.
Description
Technical field
The utility model relates to a kind of power switchgears, more specifically, it relates to a kind of high reliability vacuum circuit breaker
Device.
Background technique
The dielectric of vacuum circuit breaker contact gap after its arc-extinguishing medium and arc extinguishing is gained the name due to being all high vacuum；It has
There is the advantages of small in size, light-weight, not have to maintenance suitable for frequent operation, arc extinguishing, using more universal in power distribution network.Very
Empty breaker is 3~10kV, the indoor distribution in 50Hz three-phase alternating current system, for industrial and mining enterprises, power plant, substation
Middle protection and control as electrical equipment is used, especially suitable for requiring the use field of non-oil ultra high vacuum system, few maintenance and frequent operation
Institute, breaker are configurable on middle-placed switch cabinet, double-layer cabinet, fix in cabinet and use as control and protection high voltage electric equipment.
The reliability of combined floodgate is a main performance index of vacuum circuit breaker, this stability concerning power system power supply
And reliability, existing vacuum circuit breaker, after combined floodgate probably due to the use of vacuum circuit breaker long-time after deformation, aging or
It is the machine error of violent arrival of expanding with heat and contract with cold and contact occurs and contact the contact of electrode loosening, influences combined floodgate
Reliability.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of high reliability vacuum circuit breakers
Device, with higher reliability.
To achieve the above object, the utility model provides following technical solution:
A kind of high reliability vacuum circuit breaker, including fixed frame, have the first insulation column, the second insulation column and operation
Bar, insulator and connecting lever, it is characterized in that: the lower end of second insulation column has pedestal, the pedestal is connect with fixed frame
It is fixed, it is provided with pressure sensor between pedestal and fixed frame, bracket is additionally provided on the fixed frame, is set on the bracket
It is equipped with the linear advancement mechanism with the movable body of rod, the shell and bracket of the linear advancement mechanism are hinged, the linear advancement
The movable body of rod of mechanism and the force side of connecting lever are hinged, which further includes main control module and connect with main control module
Power module and drive module, the sampled signal input of pressure sensor connection main control module, the drive module
Control signal input connection main control module control signal output, the linear advancement mechanism connects and is controlled by driving
Module.
As a preferred solution: further including the network communication module being connect with main control module.
As a preferred solution: the linear advancement mechanism is electric telescopic rod.
As a preferred solution: the network communication module is RS485 communication module.
As a preferred solution: the pressure sensor is sheet type pressure sensor.
As a preferred solution: the cross-sectional shape of the operating stick is " work " shape.
Compared with prior art, the utility model has the advantages that: the vacuum circuit breaker passes through detection under "on" position
The size of extruding force between contact and contact electrode contacts to judge contact and contact the tightness of the contact of electrode
Reliability, when pressure value be not achieved make contact and contact electrode reliable contacts size when, at this time main control module control power
Mechanism action, driving operating stick rotation, becomes to making contact to press tighter with contact electrode, guarantees that contact and contact electrode are reliable always
Ground contact, to significantly improve the reliability of vacuum circuit breaker.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of vacuum circuit breaker；
Fig. 2 is circuit diagram.
Description of symbols: 1, fixed frame；2, the first insulation column；3, the second insulation column；4, operating stick；5, contact；
6, insulator；7, connecting lever；8, shaft；9, bracket；10, electric telescopic rod；11, floor；12, pedestal；13, pressure sensor；14,
Electrode；15, connecting terminal.
Specific embodiment
Referring to Fig.1, a kind of high reliability vacuum circuit breaker, including fixed frame 1, are provided with the first insulation on fixed frame 1
The upper end of pillar 2 and the second insulation column 3, the first insulation column 2 and the second insulation column 3 is equipped with electrode 14 and connecting terminal
15, the upper end of the first insulation column 2 is provided with operating stick 4, and one end of operating stick 4 and the first insulation column 2 are rotatablely connected, and are grasped
Make bar 4 and connect conducting with the electrode 14 on the first insulation column 2, the other end of operating stick 4 is free end, operating stick 4 from
Contact 5 is provided with by end, for contacting with the electrode 14 of the second insulation column 3, the lower end of the second insulation column 3 has contact 5
Pedestal 12, pedestal 12 are connected and fixed with fixed frame 1, and pressure sensor 13 is provided between pedestal 12 and fixed frame 1.The vacuum
Breaker further includes insulator 6 and connecting lever 7, and connecting lever 7 is rotatablely connected by shaft 8 and fixed frame 1, one end of insulator 6 and behaviour
The body of rod for making bar 4 is hinged, one end (force side of connecting lever 7) of the other end of insulator 6 and connecting lever 7 hingedly, on fixed frame 1 also
It is provided with bracket 9, electric telescopic rod 10 is provided on bracket 9, the shell and bracket 9 of electric telescopic rod 10 are hinged, electronic to stretch
The body of rod of contracting bar 10 and the other end (force side of connecting lever 7) of connecting lever 7 are hinged.
Pressure sensor 13 is sheet type pressure sensor in the present embodiment.
Referring to Fig. 2, which further includes that main control module and the power module connecting with main control module, motor drive
Dynamic model block and RS485 communication module, power module are used to power to pressure sensor 13, main control module and RS485 communication module,
Pressure sensor 13 connects the sampled signal input of main control module, and main control module is connected remotely by RS485 communication module
Host computer, the control signal output of the control signal input connection main control module of motor drive module, motor drive module
It is also connected with its working power, the motor of electric telescopic rod 10 connects and is controlled by motor drive module.
The working principle of the vacuum circuit breaker are as follows: main control module issues control signal, motor driven to motor drive module
Module drive electric telescopic rod 10 acts, and when electric telescopic rod 10 extends, driving connecting lever 7 is rotated clockwise, and connecting lever 7 drives
Insulator 6 moves upwards, so that operating stick 4 be driven to rotate clockwise, the free end of operating stick 4 is lifted up at this time, contact 5 with
The electrode 14 of second insulation column 3 separates, and completes sub-switching operation at this time；
When electric telescopic rod 10 shortens, driving connecting lever 7 is rotated counterclockwise, and connecting lever 7 drives insulator 6 to move downward,
To drive operating stick 4 to rotate counterclockwise, the free end of operating stick 4 is pushed at this time, the electrode of contact 5 and the second insulation column 3
14 contacts, complete closing operation at this time.
After combined floodgate, need to guarantee the motor reliable contacts of contact 5 and the second insulation column 3, in the state of switch closing and switch opening
Under, pedestal 12 is different to the pressure of pressure sensor 13, because contact 5 has pressure to the second insulation column 3 after closing a floodgate
Power.
After combined floodgate, the pressure of contact 5 and the second insulation column 3 should reach certain value, just can guarantee the reliable of contact
Property.Pressure sensor 13 detects the pressure of pedestal 12, and the force information back that will test, to main control module, main control module will
The pressure value detected is compared with preset several reference values, to judge opening and closing state, and by opening and closing state
It is uploaded to host computer.
Under "on" position, pressure value and other preset reference values that main control module also will test are compared
Compared with to judge reliability that contact 5 is contacted with the electrode 14 of the second insulation column 3.Under "on" position, when pressure value is not achieved
When making the size of 14 reliable contacts of electrode of contact 5 and the second insulation column 3, main control module is issued to motor drive module at this time
Signal is controlled, shortens certain length again to control motor drive module driving electric telescopic rod 10, keeps operating stick 4 counterclockwise again
Small angle is rotated, to increase contact 5 to the pressure of the second insulation column 3, it is ensured that the electricity of contact 5 and the second insulation column 3
Pole 14 reliably contacts always, to significantly improve the reliability of vacuum circuit breaker.
In the present embodiment, to increase the mechanical strength of operating stick 4, preventing its bending to influence contact 5 and the
The reliability that the electrode 14 of two insulators, 6 pillar contacts, the cross-sectional shape of operating stick 4 is set as " work " shape herein.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (6)
1. a kind of high reliability vacuum circuit breaker, including fixed frame, the first insulation column, the second insulation column and operating stick, absolutely
Edge and connecting lever, it is characterized in that: the lower end of second insulation column has pedestal, the pedestal is connected and fixed with fixed frame,
It is provided with pressure sensor between pedestal and fixed frame, bracket is additionally provided on the fixed frame, is provided on the bracket
Linear advancement mechanism with the movable body of rod, the shell and bracket of the linear advancement mechanism are hinged, the linear advancement mechanism
The movable body of rod and connecting lever force side it is hinged, which further includes main control module and the electricity that connect with main control module
Source module and drive module, the sampled signal input of the pressure sensor connection main control module, the control of the drive module
The control signal output of signal input part connection main control module processed, the linear advancement mechanism connect and are controlled by driving mould
Block.
2. high reliability vacuum circuit breaker according to claim 1, it is characterized in that: further including the net being connect with main control module
Network communication module.
3. high reliability vacuum circuit breaker according to claim 1, it is characterized in that: the linear advancement mechanism is electronic stretches
Contracting bar.
4. high reliability vacuum circuit breaker according to claim 2, it is characterized in that: the network communication module is RS485
Communication module.
5. high reliability vacuum circuit breaker according to claim 1, it is characterized in that: the pressure sensor is sheet type pressure
Force snesor.
6. high reliability vacuum circuit breaker according to claim 1, it is characterized in that: the cross-sectional shape of the operating stick is
" work " shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820849789.1U CN208352195U (en) | 2018-06-04 | 2018-06-04 | A kind of high reliability vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820849789.1U CN208352195U (en) | 2018-06-04 | 2018-06-04 | A kind of high reliability vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208352195U true CN208352195U (en) | 2019-01-08 |
Family
ID=64891831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820849789.1U Expired - Fee Related CN208352195U (en) | 2018-06-04 | 2018-06-04 | A kind of high reliability vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208352195U (en) |
-
2018
- 2018-06-04 CN CN201820849789.1U patent/CN208352195U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190108 Termination date: 20190604 |